Le blog Certified Crypto Market
La crypto, expliquée.
Les arnaques, dévoilées.
Des guides clairs pour protéger votre argent : comment étudier un projet, repérer une arnaque, stocker vos cryptos en sécurité et comprendre chaque grande cryptomonnaie.
66 articles pour « wal » · effacer
What Is a Seed Phrase?
A seed phrase is the master key to your crypto wallet. Learn how 12- and 24-word recovery phrases work, how to store one safely and the scams that target it.
8 oct. 2026 · 4 min de lecture
Europol Highlights Quantum Threat to Crypto Wallets, Urges Immediate Mitigation
Europol has issued a warning regarding the vulnerability of exposed private keys to quantum attacks, urging crypto developers, exchanges, and users to begin post-quantum migrations. Separately, a financial expert noted that banks require sp
7 oct. 2026
Shamir Backup and Splitting a Seed Phrase
Shamir backup splits a wallet's recovery secret into shares so no single copy can steal your funds. Learn how it works and why cutting a seed in half is risky.
7 oct. 2026 · 5 min de lecture
Public Key vs Private Key Explained
A private key proves you own your crypto; a public key lets others verify it. Learn how the key pair works, how addresses are made and how to keep keys safe.
7 oct. 2026 · 5 min de lecture
How to Add a Custom Token to Your Wallet Safely
Learn how to add a custom token to your wallet safely: find the right contract address, pick the correct network, confirm details and avoid fake tokens.
7 oct. 2026 · 4 min de lecture
FinCEN Withdraws Crypto Wallet and Mixer Surveillance Proposals
The Financial Crimes Enforcement Network (FinCEN) has reportedly withdrawn two proposals concerning surveillance of unhosted crypto wallets and crypto mixing services. This decision follows significant industry feedback regarding the propos
7 oct. 2026
Steel Seed Phrase Backups: Are They Worth It?
Is a metal seed backup worth it? Compare steel plates, tiles and capsules with paper, learn what they protect against and how to use one safely.
6 oct. 2026 · 5 min de lecture
What Is a Crypto Wallet?
What a crypto wallet is, how keys and addresses work, the main wallet types (hot, cold, custodial) and the security steps every beginner should follow.
6 oct. 2026 · 4 min de lecture
FinCEN Withdraws Proposed Crypto Mixing Rule Citing Legitimate Activity Concerns
The U.S. Treasury's Financial Crimes Enforcement Network (FinCEN) has withdrawn a proposed rule concerning crypto mixing, citing potential impacts on legitimate activities. This withdrawal also includes a previous proposal related to unhost
6 oct. 2026
How to Use a Decentralized Exchange (DEX) for the First Time
How to use a DEX safely for the first time: set up a wallet, find the real site, verify the token, set slippage, approve wisely and avoid common mistakes.
6 oct. 2026 · 5 min de lecture
Crypto Phishing Sites: How to Recognize a Fake Exchange or Wallet Page
Crypto phishing sites copy real exchanges and wallets to steal logins and seed phrases. Learn the warning signs, how they reach you and how to stay safe.
5 oct. 2026 · 4 min de lecture
Passphrases (25th Word) Explained
A BIP39 passphrase, or 25th word, adds a secret to your seed phrase and creates a hidden wallet. Learn how it works, when to use one and how to back it up.
5 oct. 2026 · 4 min de lecture
Vanity Address Risks and Look-Alike Addresses
Vanity address risks explained: how custom and look-alike crypto addresses are made, how scammers abuse them, weak generator flaws and how to stay safe.
4 oct. 2026 · 5 min de lecture
Wallet Validation and Synchronization Scams
A wallet validation scam tricks you into entering your seed phrase to 'sync' or 'verify' a wallet. Learn how it works, the red flags and what to do next.
4 oct. 2026 · 5 min de lecture
Supply-Chain Attacks: Malicious Packages and Compromised Wallet Libraries
A crypto supply chain attack hides malicious code in software you trust. Learn how compromised packages and wallet libraries work and how to protect yourself.
4 oct. 2026 · 5 min de lecture
Physical Security for Crypto Holders: Wrench Attacks and Privacy
What a crypto wrench attack is, how criminals pick targets, warning signs, and practical privacy and wallet setups that make physical coercion less effective.
4 oct. 2026 · 5 min de lecture
Tampered and Fake Hardware Wallets: How to Buy One Safely
A fake hardware wallet or tampered device can empty your crypto. Learn how these attacks work, the warning signs, and how to buy and set up a wallet safely.
4 oct. 2026 · 5 min de lecture
Phishing Through Search Ads: Why the Top Result Can Be Fake
Crypto search ads phishing explained: how fake sponsored results lead to wallet drainers and fake logins, the warning signs, and how to reach real sites safely.
4 oct. 2026 · 5 min de lecture